New Allis Chalmers Cylinder Head Bolt | Nissan K21 & K25 Engines | 11056-FY500

Ensure a perfect seal and prevent head gasket failure with this high-tensile cylinder head bolt. The 11056-FY500 is the standard-fit head bolt for the Nissan K15, K21, and K25 engine series—the workhorse engines found in Allis Chalmers, Komatsu, Mitsubishi, Caterpillar, and Nissan lift trucks.

Precision-manufactured to meet OEM stretch and torque specifications, these bolts provide the consistent clamping force required for high-cycle industrial engines.

• Part Number: 11056-FY500 (Crosses to 91H20-00350, 11056-FY50A, 1G118-6TC00)

• Thread Pitch: Precision Industrial Grade

• Application: Cylinder Head to Engine Block

• Verified Model Fitment:

- Allis Chalmers: Various IC Series

- Nissan / UniCarriers: K21, K25 Engines

- Komatsu: FG20, FG25 Series (-14, -16)

- Caterpillar / Mitsubishi: GP20, GP25, FG20, FG25 Series

• Note: Engines typically require 10 bolts for a complete head install.

SHIPPING & PROMOTIONS:

• PROMOTION: FREE Standard Ground Shipping included (Contiguous US).

• Availability: In stock and ready for immediate dispatch.

• Value: Buy with confidence from a specialized industrial parts distributor.

RETURNS:

Returns are subject to a mandatory 25% restocking fee. Hardware must be in new, uninstalled condition. Please verify your engine series before ordering.